<template>
    <div>
        <!-- 面包屑导航区 -->
        <el-breadcrumb separator="/">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>用户管理</el-breadcrumb-item>
            <el-breadcrumb-item>用户列表</el-breadcrumb-item>
        </el-breadcrumb>
        <!-- 卡片视图区 -->
        <el-card>
            <!-- 搜索与添加区 -->
            <el-row :gutter='20'>
                <el-col :span='7'>
                    <el-input placeholder="请输入内容" v-model='queryInfo.query' clearable @clear='getUserList'>
                        <el-button slot="append" icon="el-icon-search" @click='getUserList'></el-button>
                    </el-input>
                </el-col>
                <el-col :span='4'>
                    <el-button type='primary' @click='addDialogVisible=true'>添加用户</el-button>
                </el-col>
            </el-row>
            <!-- 用户列表区 -->
             <el-table :data="userList" border :stripe='true'>
                <el-table-column type='index' label='#'> </el-table-column>
                <el-table-column label="姓名" prop='username'> </el-table-column>   
                <el-table-column label="邮箱" prop='email'> </el-table-column>
                <el-table-column label="电话" prop='mobile'> </el-table-column>
                <el-table-column label="角色" prop='role_name'> </el-table-column>
                <el-table-column label="状态" prop='mg_state'>
                    <template slot-scope="scope">
                        <!-- {{scope.row}} -->
                        <el-switch v-model="scope.row.mg_state" @change='userStateChange(scope.row)'></el-switch>
                    </template>
                </el-table-column>
                <el-table-column label="操作" width='200px'>
                    <template slot-scope='scope'>
                        <!-- 修改按钮 -->
                        <el-button type="primary" size='mini' icon="el-icon-edit" @click="showEditDialog(scope.row.id)"></el-button>
                        <!-- 删除按钮 -->
                        <el-button type="danger" size='mini' icon="el-icon-delete" @click='removeUserById(scope.row.id)'></el-button>
                        <!-- 分配角色按钮 -->
                        <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
                            <el-button type="warning" size='mini' icon="el-icon-setting" @click="openSetRoleDialog(scope.row)"></el-button>
                        </el-tooltip>
                    </template>
                </el-table-column>
            </el-table>
            <!-- 分页区域 -->
            <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange" :current-page="queryInfo.pagenum" :page-sizes="[1,2,5,10]" :page-size="queryInfo.pagesize" layout="total, sizes, prev, pager, next, jumper" :total="total">
            </el-pagination>
            <!-- 添加用户的对话框 -->
            <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="30%" @close='addDialogClose'>
                <!-- 内容主题区 -->
                <el-form :model="addForm" :rules="addFromRules" ref="addFromRef" label-width="70px">
                    <el-form-item label="用户名" prop="username">
                        <el-input v-model="addForm.username"></el-input>
                    </el-form-item>
                    <el-form-item label="密码" prop="password">
                        <el-input v-model="addForm.password"></el-input>
                    </el-form-item>
                    <el-form-item label="邮箱" prop="email">
                        <el-input v-model="addForm.email"></el-input>
                    </el-form-item>
                    <el-form-item label="手机" prop="mobile">
                        <el-input v-model="addForm.mobile"></el-input>
                    </el-form-item>
                </el-form>
                <!-- 底部区 -->
                <span slot="footer" class="dialog-footer">
                    <el-button @click="addDialogVisible = false">取 消</el-button>
                    <el-button type="primary" @click="addUser">确 定</el-button>
                </span>
            </el-dialog>
            <!-- 修改用户的对话框 -->
            <el-dialog title="修改用户" :visible.sync="editDialogVisible" width="50%" @close="editDialogClose">
                <!-- 内容主题区 -->
                <el-form :model="editForm" :rules="editFromRules" ref="editFromRef" label-width="70px">
                    <el-form-item label="用户名">
                        <el-input v-model="editForm.username" disabled></el-input>
                    </el-form-item>
                    <el-form-item label="邮箱" prop="email">
                        <el-input v-model="editForm.email"></el-input>
                    </el-form-item>
                    <el-form-item label="手机" prop="mobile">
                        <el-input v-model="editForm.mobile"></el-input>
                    </el-form-item>
                </el-form>
                <!-- 底部区 -->
                <span slot="footer" class="dialog-footer">
                    <el-button @click="editDialogVisible = false">取 消</el-button>
                    <el-button type="primary" @click="editUserInfo">确 定</el-button>
                </span>
            </el-dialog>
            <!-- 分配用户角色的对话框 -->
            <el-dialog title="分配角色" :visible.sync="setRoleDialogVisible" width="50%">
                <div>
                    <p>当前的用户：{{userInfo.username}}</p>
                    <p>当前的角色：{{userInfo.role_name}}</p>
                    <p>分配新角色：
                        <el-select v-model="selectedRoleId" placeholder="请选择">
                            <el-option v-for="item in rolesList" :key="item.id" :label="item.roleName" :value="item.id">
                            </el-option>
                        </el-select>
                    </p>
                </div>
            <span slot="footer" class="dialog-footer">
                <el-button @click="setRoleDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
            </span>
            </el-dialog>
        </el-card>
    </div>
</template>
<script>
export default {
    data(){
            // 验证邮箱的规则
            var checkEmail=(rule,value,cb)=>{
                //验证邮箱的正则表达式
                const regEmail=/^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
                if(regEmail.test(value)){
                    //合法的邮箱
                    return cb()
                }
                cb(new Error('请输入合法的邮箱'))
            }
            //验证手机号的规则
            var checkMobile=(rule,value,cb)=>{
                // 验证手机号的正则表达式
                const regMobile=/^(0|86|17951)?(13[0-9]|15[012456789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
                if(regMobile.test(value)){
                    //合法的手机号
                    return cb()
                }
                cb(new Error('请输入合法的手机号'))
            }
        return{
            // 获取用户的列表的参数对象
            queryInfo:{
                query:'',
                // 当前的页数
                pagenum:1,
                // 当前每页显示多少条数据
                pagesize:2
            },
            userList:[],
            total:0,
             // 控制添加用户对话框的显示与隐藏
            addDialogVisible:false,
            // 控制修改用户对话框的显示与隐藏
            editDialogVisible:false,
            //查询到的用户信息对象
            editForm:{},
            //添加用户的表单数据
            addForm:{
                username:'',
                password:'',
                email:'',
                mobile:''
            },
            // 添加用户表单验证规则的数据
            addFromRules:{
                username:[
                    {required:true, message:"请输入用户名", trigger:'blur'},
                    {min:3,max:10,message:'用户名的长度在3~10个字符之间',trigger:'blur'}
                ],
                password:[
                    {required:true, message:"请输入密码", trigger:'blur'},
                    {min:3,max:10,message:'密码的长度在3~10个字符之间',trigger:'blur'}
                ],
                email:[
                    {required:true, message:"请输入邮箱", trigger:'blur'},
                    { validator: checkEmail, trigger: 'blur' }
                ],
                mobile:[
                    {required:true, message:"请输入手机号", trigger:'blur'},
                    { validator: checkMobile, trigger: 'blur' }
                ],
            },
            // 修改用户表单验证规则的数据
            editFromRules:{
                email:[
                    {required:true, message:"请输入邮箱", trigger:'blur'},
                    { validator: checkEmail, trigger: 'blur' }
                ],
                mobile:[
                    {required:true, message:"请输入手机号", trigger:'blur'},
                    { validator: checkMobile, trigger: 'blur' }
                ],
            },
            // 控制分配角色对话框的显示与隐藏
            setRoleDialogVisible:false,
            //需要被分配角色的用户信息
            userInfo:{},
            // 所有角色的数据列表
            rolesList:[],
            //已选中的角色id值
            selectedRoleId:''
            
        }
    },
    created(){
        this.getUserList()
    },
    methods: {
        async getUserList(){
            const {data:res} = await this.$http.get('users',{params:this.queryInfo})
            if(res.meta.status!==200)return this.$message.error(res.meta.msg)
            this.userList=res.data.users
            this.total=res.data.total
            // console.log(res)
        },
        // 监听pagesize改变的事件
        handleSizeChange(newSize){
            // console.log(newSize)
            this.queryInfo.pagesize=newSize
            this.getUserList()
        },
        // 监听 页码值 改变的事件
        handleCurrentChange(newNum){
            this.queryInfo.pagenum=newNum
            this.getUserList()
        },
        //监听Switch状态的改变
       async userStateChange(userInfo){
            // console.log(userInfo)
           const {data:res}=await this.$http.put(`users/${userInfo.id}/state/${userInfo.mg_state}`)
           if(res.meta.status!==200){
               userInfo.mg_state=!userInfo.mg_state
               return this.$message.error(res.meta.msg)
           }
           this.$message.success(res.meta.msg)
        },
       //监听用户对话框的关闭
        addDialogClose(){
            this.$refs.addFromRef.resetFields()
        },
        //点击按钮，添加新用户
        addUser(){
            this.$refs.addFromRef.validate(async valid=>{
                // console.log(valid)
                if(!valid)return
                // 可以发起添加用户的网络请求
                const {data:res}=await this.$http.post('users',this.addForm)
                if(res.meta.status!==201)return this.$message.error('添加用户失败')
                this.$message.success('添加用户成功')
                // 隐藏用户对话框
                this.addDialogVisible=false
                // 重新获取用户列表数据
                this.getUserList()
            })
        },
        // 展示编辑用户的对话框
        async showEditDialog(id){
            const {data:res}=await this.$http.get('users/'+id)
           if(res.meta.status!==200)return this.$message.error(res.meta.msg)
           this.editForm=res.data
           console.log(this.editForm)
            this.editDialogVisible=true
        },
        // 监听修改用户对话框关闭事件
        editDialogClose(){
            this.$refs.editFromRef.resetFields()
        },
        //修改用户信息并提交
        editUserInfo(){
            this.$refs.editFromRef.validate(async valid=>{
                if(!valid)return
                //发起修改用户信息的请求
                const {data:res}=await this.$http.put('users/'+ this.editForm.id,{email:this.editForm.email,mobile:this.editForm.mobile})
                if(res.meta.status!==200)return this.$message.error(res.meta.msg)
                //关闭对话框
                this.editDialogVisible=false;
                //刷新数据列表
                this.getUserList()
                //提示修改成功
                this.$message.success(res.meta.msg)
            })
        },
        // 点击删除按钮，是否删除用户信息
       removeUserById(id){
           // 弹窗询问用户是否删除信息
           this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
                confirmButtonText: '确定',
                cancelButtonText: '取消',
                type: 'warning'
            }).then(async () => {
               const {data:res}=await this.$http.delete('users/'+id)
               if(res.meta.status!==200)return this.$message.error(res.meta.msg)
               //刷新数据列表
                this.getUserList()
                // 提示删除成功
                this.$message.success(res.meta.msg)
            }).catch(() => {
                this.$message({
                    type: 'info',
                    message: '已取消删除'
                });          
            });
            
        },
        // 点击按钮。打开分配角色的对话框
        async openSetRoleDialog(userInfo){
            this.userInfo=userInfo
            // 在展示对话框之前，获取所有的角色列表
            const {data:res} = await this.$http.get('roles')
            if(res.meta.status!==200)return this.$message.error('获取角色列表失败！')
            this.rolesList=res.data
            console.log(res)
            this.setRoleDialogVisible=true
        },
        // 点击按钮，分配角色
        async saveRoleInfo(){
            if(!this.selectedRoleId){
                return this.$message.error('请选择新的角色')
            }
            const {data:res} = await this.$http.put(`users/${this.userInfo.id}/role`,{rid:this.selectedRoleId})
            if(res.meta.status!==200)return this.$message.error('更新角色失败！')
            this.$message.success('更新角色列表成功！')
            this.getUserList()
            this.setRoleDialogVisible=false
            this.selectedRoleId=''
        }
    },
}
</script>
<style lang="less" scoped>
    
</style>